Specific code 2011 ICD-9-CM Diagnosis Code 422.0
Acute myocarditis in diseases classified elsewhere
  • Short description: Ac myocardit in oth dis.
  • ICD-9-CM 422.0 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 422.0 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 422.0.
  • More recent version(s) of ICD-9-CM 422.0: 2012 2013 2014.
Disease Synonyms
  • Acute myocarditis - influenzal
  • Acute myocarditis - tuberculous
  • Acute myocarditis associated with another disorder
  • Adenoviral myocarditis
  • Avian influenza w myocarditis
  • Dilated cardiomyopathy secondary to fungal myocarditis
  • Dilated cardiomyopathy secondary to metazoal myocarditis
  • H1N1 influenza w myocarditis
  • Influenza A w myocarditis
  • Influenza A with myocarditis
  • Influenza w myocarditis
  • Influenza with myocarditis
  • Influenza, avian with myocarditis
  • Influenza, H1N1 with myocarditis
  • Mumps myocarditis
  • Myocarditis due to avian influenza
  • Myocarditis due to H1N1 influenza
  • Myocarditis due to influenza A
  • Myocarditis due to influenza virus
  • Myocarditis due to scarlet fever
  • Parasitic myocarditis
  • Tuberculosis of myocardium
422.0 Excludes
  • myocarditis (acute) (due to):
Code First
Convert to ICD-10-CM: 422.0 converts approximately to:
  • 2014 ICD-10-CM I41 Myocarditis in diseases classified elsewhere
ICD-9-CM Volume 2 Index entries containing back-references to 422.0:
  • Myocarditis (fibroid) (interstitial) (old) (progressive) (senile) (with arteriosclerosis) 429.0
    • due to or in
      • Coxsackie (virus) 074.23
      • diphtheria 032.82
      • epidemic louse-borne typhus 080 [422.0]
      • influenza (see also Influenza) 487.8 [422.0]
      • Lyme disease 088.81 [422.0]
      • scarlet fever 034.1 [422.0]
      • toxoplasmosis (acquired) 130.3
      • tuberculosis (see also Tuberculosis) 017.9 [422.0]
      • typhoid 002.0 [422.0]
      • typhus NEC 081.9 [422.0]
    • influenzal (see also Influenza) 487.8 [422.0]
    • tuberculous (see also Tuberculosis) 017.9 [422.0]
  • Scarlatina 034.1
    • myocarditis, acute 034.1 [422.0]
      • old (see also Myocarditis) 429.0
  • Tuberculosis, tubercular, tuberculous (calcification) (calcified) (caseous) (chromogenic acid-fast bacilli) (congenital) (degeneration) (disease) (fibrocaseous) (fistula) (gangrene) (interstitial) (isolated circumscribed lesions) (necrosis) (parenchymatous) (ulcerative) 011.9
    • myocarditis 017.9 [422.0]
  • Typhoid (abortive) (ambulant) (any site) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) 002.0
    • myocarditis 002.0 [422.0]
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 422.0 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.